I prefer Valvoline Synpower 5W-20. Out of all the oil, it gave my engine the smoothest start-up. Plus, I take advantage of their 300,000 mile guarantee. Go with Valvoline Synpower.
When I used Mobil 1, there was a noticeable amount of engine oil burn off. I can't comment on PP because I haven't used it in a while. However, I notice there are quite a few PP and M1 fanboys around.
If anything, go with Val Synpower because it is $2 less expensive than PP.